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archivebox/bin/validate_docker_display.sh

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#!/usr/bin/env bash
# Real Compose regression checks. Build the image under test first, then run:
# IMAGE=archivebox/archivebox:issue-1872 ./bin/validate_docker_display.sh
set -Eeuo pipefail
export IMAGE="${IMAGE:-archivebox/archivebox:dev}"
validation_dir="$(mktemp -d "${TMPDIR:-/tmp}/archivebox-display.XXXXXX")"
compose=(docker compose --project-name "archivebox-display-$$" --file "$validation_dir/compose.yml")
cleanup() {
"${compose[@]}" down --volumes --remove-orphans
echo "Validation files: $validation_dir"
}
trap cleanup EXIT
cat > "$validation_dir/compose.yml" <<'YAML'
services:
archivebox:
image: ${IMAGE}
volumes:
- ./data:/data
- tmp:/tmp/archivebox
shm_size: 1gb
novnc:
image: theasp/novnc:latest
environment:
DISPLAY_WIDTH: 1280
DISPLAY_HEIGHT: 800
RUN_XTERM: "no"
healthcheck:
test: ["CMD", "xdpyinfo", "-display", ":0"]
interval: 2s
timeout: 2s
retries: 10
volumes:
tmp:
YAML
"${compose[@]}" up -d --wait novnc
# Check the real runtime dependency as well as successful X11 connectivity.
"${compose[@]}" run --rm archivebox sh -ec '
command -v xdpyinfo
test "$DISPLAY" = novnc:0.0
xdpyinfo >/dev/null
'
"${compose[@]}" run --rm -e DISPLAY=novnc:0.0 archivebox sh -ec '
test "$DISPLAY" = novnc:0.0
xdpyinfo >/dev/null
'
# Explicit values belong to the caller, even when X11 is unavailable.
"${compose[@]}" run --rm -e DISPLAY=unavailable:0 archivebox sh -ec '
test "$DISPLAY" = unavailable:0
'
# An explicit empty value disables automatic display discovery.
"${compose[@]}" run --rm -e DISPLAY= archivebox sh -ec '
test "${DISPLAY+x}" = x
test -z "$DISPLAY"
'
"${compose[@]}" stop novnc
"${compose[@]}" run --rm archivebox sh -ec '
test "${DISPLAY+x}" != x
'
"${compose[@]}" run --rm -e DISPLAY=novnc:0.0 archivebox sh -ec '
test "$DISPLAY" = novnc:0.0
'
echo 'PASS: Compose DISPLAY discovery, explicit override, empty opt-out, and headless fallback'